EFFECT OF WHU EXPANDING-AGENT ON SHRINKAGE OF C80 SELF-COMPACTING CONCRETE

摘要

During producing C80 SCC,key technique is to realize higher flowability and strength.Many methods for high strength,such as using lower W/C,higher strength degree of cement,more much cement content,etc,usually increase the shrinkage.A new kind of expending-agent WHU,which is made of several kinds of minerals,and with more pertinence against shrink rule of cement,is used to produce longer terms of expanding than that of others.The volume stability is improved,and the final impermeability is advanced.The rule of WHU working on durability at different age is researched in this paper.